I paid $199 for the family pack--since Apple treats me like an honest person with no 40 digit codes and activation idiocy, I treat Apple with similar respect by paying for the family pack. (And yes, I know there is no difference. It's an honor thing.)
Was it worth it?
Absolutely.
The speed.
The dozen or so killer features.
The thousands of little enhancements.
It's a great update. Well worth the money.
Yeah I know, by some reason, Apple

Ill be buying Leopard soon